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Routines |
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Used by the routine at GoldfishGame_PlayerControls.
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| Controls_KempstonJoystick | D55C | IN A,($1F) | Read from the Kempston joystick port. | |
| D55E | PUSH AF | Stash the control on the stack. | ||
| D55F | AND $02 | If left has been pressed, call GoldfishGame_PlayerMoveLeft. | ||
| D561 | CALL NZ,GoldfishGame_PlayerMoveLeft | |||
| D564 | POP AF | Restore the current control but keep it on the stack. | ||
| D565 | PUSH AF | |||
| D566 | AND $04 | If down has been pressed, call GoldfishGame_PlayerMoveDown. | ||
| D568 | CALL NZ,GoldfishGame_PlayerMoveDown | |||
| D56B | POP AF | Restore the current control but keep it on the stack. | ||
| D56C | PUSH AF | |||
| D56D | AND $08 | If up has been pressed, call GoldfishGame_PlayerMoveUp. | ||
| D56F | CALL NZ,GoldfishGame_PlayerMoveUp | |||
| D572 | POP AF | Restore the current control from the stack. | ||
| D573 | AND $01 | If right has been pressed, call GoldfishGame_PlayerMoveRight. | ||
| D575 | JP NZ,GoldfishGame_PlayerMoveRight | |||
| D578 | RET | Return. | ||
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